DIN and Standards for Fasteners
Most of the world has gone metric in its industrial measurement standards, which is why Mr. Metric enjoys such a booming business as the premier supplier of metric fasteners in the U.S. But since we don’t necessarily “think metric” on this side of the planet, it’s understandable that you might be puzzled by the various international standards sporting esoteric acronyms such as DIN and JIS. Allow us to shed a little light on the subject so that you can order your metric fasteners with confidence.
DIN and JIS are the two primary standardization systems used by various industries worldwide. DIN, or “Deutsches Institut fur Normung e.V.,” is Germany’s national standards organization. There are DIN numbers for practically every product you can think of, from paper sizes to film speed. Here at Mr. Metric you can search for a given part by DIN number, which many of our customers do more or less automatically because they know the part they’re looking for by that number. The basic part category is followed by numbers representing specific dimensions (thread pitch, et cetera) and materials. For example, “DIN7 – VSM12771B h8 A-1” is a specific type of dowel pin fastener.
JIS stands for “Japanese Industrial Standards” and is controlled by the Japanese Industrial Standards Association in accordance with the Industrial Standardization Law of 1949. The initials JIS are followed by another initial that stands for a particular industry or application, followed by a four-digit part indicator. ISO (International Standards Organization) is another international standard. JIS and ISO numbers aren’t all that widely used here in the U.S., though JIS remains the primary standard in Japan. But whatever standards you use, as long as you know what part you need, Mr. Metric can help you make sure you order the right item.